Meet the 630FMM Eaton Bussmann Series High-Speed Fuse—a British-standard, double-barrel powerhouse engineered for demanding AC/DC applications. With a 630 A current rating and 690 VAC / 450 VDC capability, it delivers rapid fault clearing and dependable semiconductor protection for today’s high-power systems.

Key Features at a Glance

• High-Speed aR Class: Optimized for semiconductor protection

• Wide Voltage Range: 690 VAC and 450 VDC

• Serious Interrupting Capacity: 200 kA RMS Sym (AC), 40 kA at 450 VDC (IEC)

• 630 A Rating: Robust current handling for heavy-duty installations

• British Standard, Double-Barrel construction for compact, high-energy circuits

• Low I²t Values: Pre-arc I²t 45,000; Clearing I²t 180,000 [Units Not Provided]

• Watt Loss: 100 W

• Bolt-in Convenience: Stud mounting, M8 hardware, blade-to-blade ends

• C-to-C Spacing: 83.7 mm for straightforward panel layout

• Accessory Ready: Compatible with MC-600, TI700, MAI, MBI kits

• No Built-in Indicator: Use external indicators/switch kits as needed

Why Choose This Product

If uptime and device safety matter, the 630FMM has you covered. Its Class aR performance clears faults fast to protect sensitive power electronics, while the 200 kA AC interrupt rating and 40 kA DC capability manage severe fault conditions with confidence. The double-barrel, British-standard form factor saves space and simplifies integration across AC/DC common bus systems, drives, rectifiers, and converters.

Ideal For

• DC common bus protection

• Variable speed and DC drives

• Power converters and rectifiers

• Semiconductor device protection (IGBTs, diodes, SCRs)

• Industrial panels and OEM power electronics

Shansen Enterprises, Authorized Channel Partner for Eaton Bussmann Series in India with a 100% customer satisfaction record, keeps the 630FMM in stock for fast pan-India dispatch from Coimbatore. Tap the Easy Quote button or message us on WhatsApp for a quick, no-obligation quote and expert sizing support.